Pith Number

pith:DHWGK2NT

pith:2019:DHWGK2NTXZD5RKWWOK3WKGFGJL

not attested not anchored not stored refs pending

Naturally curved quadrilateral mesh generation using an adaptive spectral element solver

David A. Kopriva, Joaquim Peir\'o, Julian Marcon, Spencer J. Sherwin

arxiv:1908.04272 v2 · 2019-08-12 · math.NA · cs.CG · cs.NA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DHWGK2NTXZD5RKWWOK3WKGFGJL}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-05T00:40:57.335172Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

19ec6569b3be47d8aad672b76518a64af8c137b3a066b0baa84db09f9e5c2581

Aliases

arxiv: 1908.04272 · arxiv_version: 1908.04272v2 · doi: 10.48550/arxiv.1908.04272 · pith_short_12: DHWGK2NTXZD5 · pith_short_16: DHWGK2NTXZD5RKWW · pith_short_8: DHWGK2NT

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/DHWGK2NTXZD5RKWWOK3WKGFGJL \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 19ec6569b3be47d8aad672b76518a64af8c137b3a066b0baa84db09f9e5c2581

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1134d034672104a1ab3320ce435210cb9a691b17cebeacfbe97556de075eec6d",
    "cross_cats_sorted": [
      "cs.CG",
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2019-08-12T17:35:01Z",
    "title_canon_sha256": "dfbb96db5e8d22d0dc4c64981f6d1906bce7f0a36939e1daaaf58608d7e03c6a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.04272",
    "kind": "arxiv",
    "version": 2
  }
}